1.3 Solver: external solver interface

External solvers can be interfaced with Gmsh through Unix or TCP/IP sockets, which permits to launch external computations and to collect and process the results directly from within Gmsh's post-processing module. The default solver interfaced with Gmsh is GetDP (http://www.geuz.org/getdp/). Examples on how to interface solvers written in C, C++, Perl and Python are available in the source distribution (in the ‘utils/solvers/’ directory).